Matcher-head.



' Patented Aug. 27, |901. w. w. PHILBmcK. l

MATCHEB HEAD. (Application filed Aug. 2B, 1900.)

(No Model.)

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No. 6`8|,458. Patented Aug. 27, |9o|.`

w w PHlLmcK MATCHER HEAD.

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WARREN W. PHILBRICK, OF SEATTLE, VASHINGTON.

MATCHER-HEAD.

SPECIFICATION forming part of Letters Patent No. 681,458, dated August27, 1901. Application filed August 2.8, 1900. Serial No. 28,276. (Nomodel.)

To all whom t 11mg/ concern:

Be it known that LWARREN W.PHILBRIOK, of Seattle, in the county of Kingand State of Washington, have invented a new and useful Improvement inMatcher-Heads, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, whichform a part of this speci- Iication.

This invention has relation to certain new and useful improvements inmatcher-heads of that class which are described and claimed in my priorpatents, Nos. 629,813, 629,814, 633,153, and 633,151, in which the Workis divided between jointing blades or cutters which joint the verticalfaces of the lumber and independent circular bits which form the tongue,groove, orother special configuration.

The present invention is more particularly designed to provide means ofimproved character for securing the adjustment of the circular bits orcutters.

With this and other minor objects in ViewV my invention consists in thenovel construction, arrangement, and combination of parts, all ashereinafter described, reference being had to the accompanying drawings.

In the drawings, Figure 1 is a plan view of a matcher-head embodying myinvention and especially designed for use as a tonguinghead. Fig. 2 is aside elevation of the same. j

Fig. 3 is a section on the line 3 3 of Fig. 1. FigsA., 5, and 6 arerespectively plan, side, and end views of the bit-carrier detached. Fig.7 is a detail view, partly in section and partly in side elevation, ofthe adj usting-nut. Fig. 8 is an inverted plan view of theadjustingring, and Fig. 9 is a development thereof. Figs. 10 and 11 arerespectively plan and side views of one of my improved jointing bladesor critters. Figs. 12 and 13 are similar views showing a different formof the same. Figs. 14:, 15, 1G, 17, and 18 are detail views of circularbits or cutters. Fig. 19 is a detail view of a circular bit for use on agroove-head,and Fig. 20 is a detail view showing a modified form ofbit-seat. v

The numeral 1 designates the usual shaft or spindle on which the head ismounted and secured by the screw 2.

3 is the usual adj ustingscrew for the head;

4 is the body of the head, which is formed with the lateral seats 5 forthe j ointing-blades 6 and with the central seat 7 for the bit-carrier8. This bit-carrier is in general similar to the one shown in my saidpatents and is more particularly like that shown in my Patent No.633,153 in that it is provided with the fulcrum-lugs 9. Thesefulcrum-lugs rest in seats 10 in the body of the head,as best shown inFig. 3, and are made of sufficient -length to bring their fulcrum endsdown into about the horizontal plane of the cutting edges of thecircular bits 11, which are seated on the ends of the bit-carrier, as inthe said patent. The purpose of thus extending these fulcrumlugs is toprevent one of said bits swinging up and out and the other down and inwhen the bar is adjusted, as would be the case were the center ofmovement above the plane of the bits. The upper face of the bit-carrieris provided with the lugs 12 and 13 at opposite sides of the head, andupon these lugs rests an adj usting-ring 14.. The under face of thisring is provided with a series of notches 15 of gradually-varyingdepth,as most clearly shown in the development, Fig. 9, and the lug 12is made of the proper size to engage any one of the said notches. Thelug 13, however, is made sufficient-ly broad not to Venter the saidnotches.

16 is an adj usting-n ut which is threaded on the hub portion of thehead. This nut bears upon the ring 14 and is formed with a reducedportion 17, which fits within said ring, as shown in Fig. 3, thus givingthe nut a more extended bearing and also protecting the thread frominjury by the ring.

18 designates apertures in the nut for the engagement of a span-wrenchor other suitable implement. By loosening this nut the ring 14 may beset so that the lug 12 will engage with any desired notch in the saidring, when by tightening said nut the bit-carrier will receive verticaladjustment corresponding to the depth of the particular notch--that isto say, the deeper the notch which is engaged by the said lug thegreater will be the deflection of the bit-carrier from a horizontalplane. This adjustment effects the formation of a tongue (or in agrooving-head a groove) of any desired width or thickness, as is fullydescribed in my prior patents.

The notches are carefully graduated in depth, and in prac- IOG tice eachis properly marked with figures indicating the adjustment effectedthereby.

In Figs. 1, 10, and 11 the jointing-blades are shown as having theircutting end portions 6a bent in the direction of rotation and ground offat 6b to form their cutting edges. I have found that in this form of bitthe cutting edges, being ground on the inside, Wear back much moreslowly than do the edges of the straight bits of my former patents, sothat they require much less frequent adjustment to compensate for Wear.These blades are also slotted at 6c and grooved at 6d to pass the tongueand also to form the rounded cutting or shaping edge (tie at the innerend of the slot G. This edge 6ve imparts a rounded form to the verticaledge of the tongue and also counteracts any tendency of the circularbits to make one horizontal face of the tongue Wider than the other incase one of said bits should happen to be iiled with more hook at thepoint 11a than the -other one. Therefore much less care is required infiling the circular bits. The provision of this edge 6e also makes thesej ointing-blades joint the entire vertical face of the lumber, by whichI mean the vertical face of the tongue as Well as the vertical facesabove and below the tongue, While the tongue itself is formed by theaction of the circular bits. This I believe to be an entirely novelresult. The same improvement may be applied to the straightjointing-blades 6X, as shown in Figs. 12 and 13. The slot 6C, in thejointing-blades is made of sufficient Width to pass a tongue of themaximum thickness provided for by the adjustment of the circular bits.To impart a counterpart configuration to the bottoms of the grooves Iround the edges of the grooving-bits, as shown at 19 in Fig. 19. Figs.14:, 15, 16, and 17 show the two circular bits 11 for the tonguing-headin both plan and sideV elevation.

Since the clearance of the circular bits is determined by theinclination of the hit-seats and bit-securing bolts to insure greateraccuracy instead of using independent securing-bolts, as shown in Fig.2, I may form fact, to any head of the general type to which the saidpatents relate.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is

1. In a matcher-head, the combination with the body of the head, havinga diametricallyextending seat therein, and the bit-carrier fulcrumed insaid seat, and. having a lug or tooth on its upper face, of theadjusting-ring having a series of graduated notches, any one of whichmay receive the said lug or tooth, and the adjusting-nut bearing on thesaid ring.

2. In a matcher-head, the combination With the body of the head, havinga diametricallyextending seat for abit-carrier, a bit-carrier fulcrumedon saidseat and having a lug or tooth, an adjusting-ring having a seriesof graduated notches any one of which may receive the said lug or tooth,and an adjustingnut bearing upon the upper surface of the said ring andhaving a reduced portion extending through the ring and seating thesame.

In testimony whereof I have aftixed my signature in presence of twoWitnesses.

WARREN W. PHILBRICK.

Witnesses:

ARTHUR R. RUTHERFORD, JOHN KELLEHER.

